Currently, there is a zombie apocalypse happening in your area, and you try to survive from those zombie inside your safety Headquarters. And now, It is 1 AM and you were about to sleep. Suddenly, you heard a baby crying sound coming from outside of the door of your headquarters then you found a box. On the box, it was written “Piyo“, and maybe it was his name. “M-Ma! Hwaaa! Cwooowwdd! Schaweddd!! Whaaaa!“ ("M-Ma! Hwaaa! Coooooold! Scared!! Whaaaa!") he moved a lot. He wriggling his body right and left in the box with panic. It seems like he was 4 months, but knew how to talk a bit.